多域环境中基于蚁群算法的抗攻击时态信任模型  

Robust Temporal Trust Model Using Ant Colony Algorithm in the Multi-domain Environment

作　　者：文珠穆[1] 李瑞轩[1] 卢正鼎[1] 冯本明[2] 唐卓[1,2] 

机构地区：[1]华中科技大学计算机科学与技术学院,武汉430074 [2]湖南大学计算机与通信学院,长沙410082

出　　处：《计算机科学》2009年第7期46-51,共6页Computer Science

基　　金：国家自然科学基金项目(项目编号:60403027;60773191;60873225);国家高技术研究发展计划(863计划)项目(2007AA01Z403)资助

摘　　要：针对多自治域环境中的域间信任关系动态的、不确定性等特点,提出了一种基于时间的动态信任关系模型。每个自治域都维护有一个描述该域和其他域之间的信任度的信任向量。在本模型中,两个域间的信任关系取决于时间和域间的互操作记录。基于蚁群算法给出了根据多自治域的当前环境来实时地计算域间信任关系的基本方法,当局部的信任度发生改变时,可以根据蚁群算法及时调整全局信任关系。最后,通过仿真实验验证了域间信任关系的建立及变化过程。qThis paper introduced a model for time-based temporal trust. The trust in multi-domain environment is un- certain,which is variation for various factors. Every domain is endowed with a trust-vector, which figures the trust intensity between this domain and the others. The trust intensity is dynamic due to the time and the inter-operation between two domains, a method was proposed to quantify this change based on the mind of ant colony algorithm and then an algorithm for the transfer of trust relation was also proposed. Furthermore, this paper analysed the influence to the trust intensity among all entities that is aroused by the change of trust intensity between the two entities, and presented an algorithm to resolve the problem. Finally,we show the process of the trusts＇ change that is aroused by the time＇s lapse and the inter-operation through the Simulation Experiment.

关 键 词：时态信任 蚁群算法 信任向量 多域环境 

分 类 号：TP309[自动化与计算机技术—计算机系统结构] TP301.6[自动化与计算机技术—计算机科学与技术]